MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of multiple PDF link farm heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0e6e1b91f---72905788217.pdf In PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/02adc258ed347a278cd9d9ed01a2bf6f/94513784873.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/97c61efbd0eb0d31698fe725c4aa9f81/71666832441.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/1f2daac2498d89bc0589566341243a11/melemofasivi.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a92e7d08661---juwerafu.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/aef5e1c0933e301c52bae6fea4b66796/75538718302.pdfIn PDF document text
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/d4639370cf806280f93dad6c472685fe/32985549296.pdfIn PDF document text
- https://itchanoi.vn/uploads/news_file/zegituzepugedos.pdfIn PDF document text
- http://compufoxmail.com/userfiles/file/pozukepofajajukifimewav.pdfIn PDF document text
- http://maasmartcity.com/userfiles/file/99003946380.pdfIn PDF document text
- http://massimosusto.eu/userfiles/files/7698163174.pdfIn PDF document text
- http://creativeindustries.ru/uploads/userfiles/file/37776070496.pdfIn PDF document text
- http://dailycan.com/userfiles/files/kilonativujexosu.pdfIn PDF document text
- https://terminal.hr/userfiles/file/84660551838.pdfIn PDF document text
- https://reniuved.it/file/xagiw.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/zupive.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608a45ab46271---91657921762.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=full+practice+act+test+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C7 | 17976 bytes |
SHA-256: 76cbbbe55755ea450f3ec43687c59a8e4abbf281f478481cc328fc89a88cbc33 |
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font_01_sfnt_off00011337.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11337 | 10464 bytes |
SHA-256: 7e904a4df0e6f3247dac4554a68bf445b348a77c0638ffcfa7aa1126b3af6234 |
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font_02_sfnt_off00012b19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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